import type { IActivityHandler, EmptyOutputs } from "../../IActivityHandler";
/** Describes inputs for the Add Item activity. */
export interface AddItemInputs {
    collection: any[];
    item: any;
    index?: number;
}
export declare class AddItem implements IActivityHandler {
    static readonly action = "gcx:wf:core::AddItem";
    static readonly suite = "gcx:wf:builtin";
    execute(inputs: AddItemInputs): EmptyOutputs;
}